<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    p {
      border: solid;
      /* border-radius: 10px; */
      /* border-radius: 10px 10px; */
      border-top-left-radius: 10px;
      border-top-right-radius: 10px;
      border-bottom-left-radius: 10px;
      border-bottom-right-radius: 10px;
    }
  </style>
</head>

<body>

  <p> this is tag p</p>
</body>

</html>